The opening of Princes Pier in 1870 for the Greenock and Ayrshire Railway Co. had signaled a downturn on the coast traffic carried by the Caledonian Railway Co. to Greenock Central with its remote and inconvenient approach to Greenock Quay. The situation was exacerbated when the Greenock and Ayrshire was absorbed into the Glasgow and South Western Railway Co. in 1872. While most steamers called at both Greenock Piers, the bulk of the traffic used the South Western route and with fast steamers such as Messrs Williamson’s Sultana on the station, the express services could even compete on the Rothesay station with the shorter crossing from Wemyss Bay. A plan to extend the Caledonian Railway further down the coast to Gourock was floated in 1877 but the proposal was rejected after opposition from the Greenock Harbour Trust. The North British Steam Packet Co. route through Craigendoran...